Spotting jack



I March 2v, 1926.

J. LEAR ET Al.

SPTTNG JACK Filed July '7 l 1925 2 Sheets-Sheet l March 2 J. LEAR ET AL SPOTTI NG JACK Fi'led July '7, 1925 2 sheets-sheet 2 .A gru/wanton d, fas,

J. Lear Patented Mar. 2, 1926.

nNrri-:n` As'mfrss JOHN LEAR AND CHARLES'A. BROST,OF NASHUA, MONTANA.

SPOTTING JACK.

Application filed July 7', 1925.

To 07'! fui/lont t Imay concor-n.:

Be it known that we, JOHN Lnau and CHARLES A. Bnosa, citizens of the United States, residing at Nashua, in the county of Valley and State of Montana, have invented certain new and useful Improvements in Spotting Jacks; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

The invention relates to manually operated means for moving heavy weights or objects-and is particularly adapted to use in .locomotive round houses for moving dead locomotives, that is locomotives in which the have been drawn, to position in the round liouse for work to be done thereon such for instance as locating the locomotive over drop pits, and also in proper position tor removing gib-bolts, taking out knuckle pins and other operations.

rlhe invention has for its object 'the provision o a pulling implement of the chan acter referred to that will be exceedingly ellieient in operation and so constructed and arranged that the strain caused during its use will be distributed to prevent breakage olf parts, and furthermore provide a device that may be quickly put into useptor the work intended.

The construction and operation and advantages of the invention will be described in detail hereinafter and the device will be found illustrated in the accompanying drawings in which Figure 1 is a top plan view of the improved spotting jack,-

Figure 2 is a side view,

Figure 3 is a vertical sectional view taken on a plane indicated by the line 3-3 ot Figure 1, y

Figure fl. is a sectional view taken on a plane indicated by the line .l-t of Figure l, the ratchet bar being shown in elevation,

Figure 5 is a. horizontal sectional view takenon a plane indicated by the line 5 5 ot Figure 4;, and.

Figure -G is a transverse sectional view taken on a plane indicated by the line G- of Figure 1 In the drawings similar referencey characters will be used to designate correspondng parts throughout the several views.

The improved spotting jack has for its actuating means a lever yoke ,l provided in Serial No. 42,044.

its extremities `with sockets 2 to receive bars that may be of any length for convenience of' operation and the yleverage necessary tor etiectively accomplishing the work in hand, such bars not being shown.

In the intermediate portion oi the lever yoke l are provided two series olf spaced apart plates, said plates being` designated generally 3. In the structure illustrated in the drawings, the number in each series oit plates is fixed at tive but it will be readily apparent that the number of plates may be increased or reduced in each series as may be found desirable.

Pivotally mounted between the two series ot plates by means of a pivot pin 4t is a hollow guide 5 in which is slidably mounted a bar 6 formed with ratchet teeth 7 on its side edges, and its outer end provided with an eye 8 or any other suitable means for connecting the locomotive or other object to` be moved thereto.

An anchor rod 9 is provided that is VU-shaped as indicated the two arms being pivotally secured to pivot pin et on opposite sides of the hollow guide 5 and between two of the plates 3 in each of the series herevtoi'ore describedl and each ot the arms is also provided with an olset arm 10 that is also pivoted to pivot pin t between two other ot the plates in each series on the two sides of the hollow guide 5, this structure forming forked ends for the two arms of the anchor rod 9. The tree end ot the anchor rod 9 is provided with an eye 11 or other suitable means for securing the rod to an anchoring member, not shown. i

Arranged on the two sides of tubular guide 5 and ratchet bar 6 are pawls or dogs 12 having inset heads 13 that engage the ratchet teeth 7 and have offset portions 1li carrying parallel ilork arms 15 that are pivotally mounted between plates 3 by means of pivot pins 16, the arms 15 being pivoted between other pairs of plates 3 than those between which the .forked ends of the U-shaped anchor bar are pivoted to distrib ute the strain in the operation of the de vice. As shown in Figures l, 4;, and 5, the arms 15 are inset over the edges of the tubular guide 5 thus providing for pivot ing the arms to the yoke lever more closely to the pivot pins 4t and providing for a greater leverage in the use of the imple ment.

An elongated ring 17 is secured to tubu lar guide by means of rivets .or other suitable fr-stenings 18, and having bowed leaf springs 19 secured thereto that have their ends engaging the pawls l2 to hold the heads 13 in engagement with teeth 7 of ratchet bar 6. r

In using the implement the anchor rod is anchored to a fixed support while the ratchet bar G is secured to the locomotive or other object to be moved and by working the two ends of the lever yoke alternately backward and forward, the pawls or dogs 1Q will work the ratchet bar G backwardly through the hollow guide 5 and the locomotive or other object Yill be placed in the position desired.

that is claimed is:-f

l. A spotting jack for locating dead locomotives in position to be operated on, comprising a ratchet bar adapted to be attached to the locomotive, a lever yoke, an anchor bar pivotally secured to said lever yoke, a hollow guide pivotally secured to said lever yoke and receiving the ratchet bar, and pawls piro'tally secured to the lever yoke and engaging the teeth of the ratchetbar.

2. A spotting jack for locating dead locomotives in position to' be operated on,`com prising a ratchet bar adapted to be attached to the locomotive, an anchor bar, a lever yoke pivotally engaging the anchor bar, a hollow guide pivotally secured to said lever yoke and receiving the ratchet bar, pawls pivotally secured to said lever yoke and en gaging the teeth of the ratchet bar, a ring secured to the tubular guide, and springs secured to said ring and engaging said pawls.

3. A spotting jack for locating dead locomotives in position to be operated on, comprising a ratchet bar adapted to be attached to the locomotive, an anchor bar, a lever yoke having its intermediate portion formed with a `series of spaced apart plates, said anchor bars having forked ends pivotally engaged between pairs of said plates, a hollow guide pivotally engaged between a pair of said plates, and receiving the ratchet bar, and pawls having forked ends pivotally engaged between pairs of said plates and engaging the ratchet bar.

al. A spotting liack for locating dead locomotives in position to be operated on, comprising a ratchet bar adapted to be ati tached to the locomotive, a U-shaped anchor bar straddling said ratchet bar, a lever yoke having its intermediate portion formed with a series of spaced apart plates, the arms of said U-shaped anchor bar forked and each of the forked ends pivotally mounted between pairs of said series of plates, a hollow guide pivotally engaged between another pair of said plates, a pawl on cach side of and engaging the ratchet bar, and each of said pawls having forked ends engaging between other pairs of said plates.

In testimony whereof We atlix our signa tures. Y

CHARLES A. BROST. JOHN LEAR. 

